The mother of a victim of the Kursk disaster, filmed berating a senior Russian minister, has said she was only given medication for her heart, not a tranquiliser, according to reports.

But the woman, Nadya Tylik, has continued her attacks on the Russian authorities, saying the rescue effort was not intensive enough.

Footage of the distraught mother, apparently being injected with a sedative, caused controversy abroad.

The woman in the white coat is holding a syringe - but there are questions over its contents

While the use of sedatives is common here, the injection came as she publicly attacked Russia's deputy prime minister, shouting that he should take off his medals.

Ms Tylik collapsed within seconds of the injection and was taken away. Cameramen who recorded the incident were prevented from filming any further.

Now, according to a news agency report, the woman says what she received was medication for her heart. The agency says she made the statement in a telephone interview.

But the foreign media cannot gain direct access to the woman to confirm this report. With many other relatives, she remains in the closed naval town of Vidyayevo, from which the Kursk set sail.

The bereaved families have been promised new apartments and generous compensation.

President Putin is anxious to bring the recriminations to an end.

But many of the relatives have accused the authorities of denying them information and too little, too late.